Medical device and method for delivering cardiac pacing pulses

A method comprising:

• generating a first cardiac pacing pulse having a pacing pulse amplitude for delivery via a first electrode terminal and a second electrode terminal of a medical device;
• pulling a first latching current by an internal adjustable load of the medical device coupled to a low side of a first high side switch coupled to the first electrode terminal to hold the first high side switch in a conducting state during a first portion of the first cardiac pacing pulse;
• and
• pulling a first holding current to hold the first high side switch in a conducting state during a second portion of the first cardiac pacing pulse, the first holding current being less than the first latching current.

A non-transitory, computer readable medium storing a set of instructions that, when executed by control circuitry of a medical device, cause the medical device to:

• generate a cardiac pacing pulse having a pacing pulse amplitude for delivery to an electrode terminal of the medical device;
• pull a latching current by an internal adjustable load of the medical device coupled to a low side of a high side switch of a high voltage output circuit of the medical device to hold the high side switch in a conducting state during a first portion of the cardiac pacing pulse;
• and
• pull a holding current to hold the high side switch in a conducting state during a second portion of the cardiac pacing pulse, the holding current being less than the latching current.